Testing & Troubleshooting for SPE

Testing & Troubleshooting for SPE

Christian Schillab

Marketing Engineer EMEA

Fluke Networks

Agenda

Who we are

The motivation for testing SPE cabling systems in comparison with the traditional rational for the

certification of new built cabling systems

The key performance parameters in a SPE system

Adapting cabling tester for SPE

Trouble shooting a SPE cabling system

The challenges for the installed base of cable testers in the testing of SPE

Who We Are

Fluke Networks is the worldwide leader in certification, troubleshooting, and installation tools for

professionals who install and maintain critical network cabling infrastructure.

Who We Are



Our Customers:

Data Com Installers

(DCI) and Contractors

Who We Are



Our Customers:

Data Com Installers


Datacenter Architects,

Consultants and

Designers

Who We Are



Our Customers:

Data Com Installers



Consultants and

Designers

Communications

Service Technicians

Who We Are

Industrial

Automation



Our Customers:

Data Com Installers



Consultants and

Designers

Communications

Service TechniciansControls Engineers,

Electricians and System

Integrators

Who We Are

Industrial

Automation



Our Customers:

Data Com Installers



Consultants and

Designers

Communications

Service TechniciansControls Engineers,

Electricians and System

Integrators

Started in 1992 (part of FLUKE)

Worldwide Presence

Over 700 employees

Service customers in more than 120 countries

Part Of The Fluke Family

Industrial Technologies

Transportation Tech. Franchise Distribution

Professional Instrumentation

Field Solutions Product Realization Health Sensing Tech.

Agenda

Who we are

The motivation for testing SPE cabling systems in comparison with the

traditional rational for the certification of new built cabling systems





Driving Forces For The Certification Of Newly Installed Cabling

Building automation Datacenter Factory automation

M1I 1

C1E

1

M3I 3

C3E

3

( Commercial Building )



M1I 1

C1E

1

M3I 3

C3E

3


Obtain the manufacturers' warranty … Guarantee todays and future applications



M1I 1

C1E

1

M3I 3

C3E

3



Prevent expensive downtime(Serial Process)



M1I 1

C1E

1

M3I 3

C3E

3




Deployment is driven by cabling standards



M1I 1

C1E

1

M3I 3

C3E

3




Deployment is driven by cabling standards

Verify the performance headroom between the installation and the application requirement(accommodate environmental changes and variation in the applications load)

Agenda

Who we are

The motivation for testing SPE cabling systems in comparison with the traditional

rational for the certification of new built cabling systems





Parameter: Insertion Loss

In dB, the signal loss down the cable

Probably the most important of all parameters

Depends on …

➢ Length

➢ Cable construction (Diameter, Shield, Twist Rate, …)

➢ Materials used

➢ Ambient temperature

Workmanship and installation is secondary

Parameter: Return Loss

In dB, the reflected signal on the same pair

Depends on the cable design and quality of the

manufacturing process

Workmanship and handling of the cable is critical

Zzzzzz

Parameter: TCL

Transverse Conversion Loss

In dB, the ratio of a common-mode voltage measured on

a wire pair at the near-end relative to a differential-mode

voltage applied to the near-end of the same pair

Depends on quality of the design and manufacturing of

cables and connectors

Workmanship and handling of the cable is less critical

(RL will suffer more)

Parameter: ELTCTL

Equal Level Transverse Conversion Transfer Loss

In dB, the normalized ratio of a common-mode voltage

measured on a wire pair at the far-end relative to a

differential-mode voltage applied to the near-end of the same

pair

Depends on quality of the design and manufacturing of

cables

Often considered an optional parameter for shielded system

Workmanship and handling of the cable is less critical

(RL will suffer first)

TCL / ELTCTL are Balance Parameters

In Laymen’s Terms: It stands for the conversion from

a desired “good” differential mode signal into an

undesired “bad” common mode signal and vice versa

in case of EMI

The topic is complex, but it is well explained

in the new “Balance e-Book”

click HERE or scan →

https://www.flukenetworks.com/request/free-e-book-balance-measurements-handbook?ls=spealliance&lsd=virtualevent

Agenda

Who we are







Adapting Cabling Tester For SPE

Are these SPE Adapters from the

recent automation show “Real”

products ?


Are these SPE Adapters from the

recent automation show “Real”

products ?


Solution based on the “Laboratory Adapter” for

the DSX-5000/8000

Ideal for assembly houses .... Lower running

cost because only the top “daughter board”

needs to be replaced

Fully functional for field trials

Source: Weidmüller

Will eventually be replaced by a regular

End2End/Channel/Patch Cord adapter

➢ Which housing M8 / M12 / Push Pull / All ?

Pictures Courtesy of Weidmüller

Interface GmbH & Co. KG


We discourage the use of hybrid courts to adapt to SPE

1. The RL, TCL, ELTCTL, would need to be 12+ dB better then

the test limit to not dominate the test result





2. A calibration process works well for IL but not for low

frequency RL, TCL, ELTCTL





2. A calibration process works well for IL but not for low

frequency RL, TCL, ELTCTL

3. Verification of the condition of the hybrid cord is very

complex

Needs For Testing A New Generation Of Connecting Hardware

1. Conceptional & Design In Phase

Laboratory Grade Tools



2. Experimental Phase(Early Implementers)





3. Implementation Tests





3. Implementation Tests

4. Large Scale Deployment(Tornado)

Field Test Tools


Agenda

Who we are







Trouble Shoot SPE Links

The link is causing problem

The RL margin is negative

5m 2m


The RL margin is negative but

saved by the 3dB Rule

The RL plot suggest a cable

problem



5m 2m


The RL margin is negative but

saved by the 3dB Rule

The RL plot suggest a cable

problem



The HDTDR confirm a problem

in the second segment

5m 2m

Agenda

Who we are








Multiple housing M8 / M12 / PushPull / etc… will require “universal” adapters.

➢ Hybrid cords have not proven to be a good alternative

Many testers in the field today can not measure TCL and ELTCTL

Some of the long range version e.g.: 10Base-T1L specify performance down to 0.1 MHz

➢ The installed base of testers starts testing at 1.0 MHz

➢ Sounds trivial but represents a decade in frequency

➢ For IL the 0.1 …. 1.0 MHz extension may not offer significant findings.

For other parameters significant issues may be found < 1.0 MHz depending on topology

➢ Some testers may be modifiable through SW

Conclusion

Testing SPE links is feasible with some of the installed field testers

A mass roll out will require a ruggedized adapter with a universal

adaption for different housing

SPE testing is ready for you!

Thank You For Your Attention! … Questions?

Please fell free to reach out to us if you have questions

[email protected]

If you want to stay updated on news around Industrial Ethernet Testing

click HERE or scan →

mailto:[email protected]

http://www.flukenetworks.com/request/clone-industrial-ethernet-news?ls=spealliance&lsd=virtualevent

Documents

Testing & Troubleshooting for SPE